Improvement in ruling-machines



dinner] gime 'atent djlilirr.

WILLIAM O. HICKOK, OF HARRISBURG,PENNSYLVANIA.

Letters Patent-No. 103,743, dated 31, 1870.

The Schedule referred to in these Letters Patent and making part of the same.

I, WILLAM 0. HIoKoK, of Harrisburg, in the countyot' Dauphin and State of Pennsylvania, have invented celtain Improvements in the Pen-Beam of Paper-ruling Machines, yof which the following is a specification.

Nature and Objects of the Invention.

Description of thc Accompanying Drawings. Figure 1 is a planview of a pen-beam, having a section of the lowerand a section of' the upper pens applied thereto, embodying my invention.

Figure 2 is a vertical longitudinal section of the said beam, sliowing the parts above the dotted line c of iig. 1.

General Description.

A Bis the pen-beam.

a' b the clamping-bar of the upper clamp.

a". b" the usual stationary spring screw-bolts and nuts near the ends of the beam, for securing the l clamping-bar a' b.' in place, and causing-it to rise when required for inserting the upper pensO; and

D D the shifting-bolts.

Beneath the clamping-bar a' b', there 'is a corresponding metallic plate, a!" h, screwed fast to the up per side of the pen-beam A B, and this plate has a series of slots, 4 4, (see fig. 2,) each about two inches long, more'or less, cnt along in linewith each other,

and at suitable distances apart, for the reception 'of .the series of slots in-the plate a b', and on the top of the bar a b each slot is provided with a corrcspondingly-slotted plate 5 5, which is screwed fast thereto so as to serve as a bearing for the screw-nuts of the said bolts D.

It will now be understood, without further description, that if `all theclamping-bolts D between the two stationary lend-bolts af b" be adjustably applied to the pen-beam A B and clamping-bar a b', substantial] y in the manner described, any one of the sections of' the upper pens C can be placed at any desired point in the clamp by shifting the said bolts D accordingly; and that this important advantage cannot b e obtained when the posit-ions of the clamping-bolts are stationary, as heretofore,

I claim as my invention- Providing the pen-beam A B with undercut slots 4, and the additional clamp a' b' with corresponding slots v5 to receive the sliding bolts D or their cquivalent, as and for the purpose set forth.

- W. O. HICKOK. Witnesses S. SCHRIVER,

W. O. HIoKoK, Jr. 

